Product Description
The roller reamer is used for all kinds of reaming stabilization in drilling operation, especially the function of stabilization in drilling of the abrasive formation. It is a very popular tool for hole size from 4 5/8 to 26". Additionally, it can be used in different hole when same body is equipped with different bearing block and roller. The body is made of modified alloy steel, fully heat treated to 285~341Brinell hardness and 54J minimum impact strength.
Rollers are available below:
1. Narrow-teeth type is used for cutting of hole wall for soft formation.
2. Wid-flat-teeth type is used for crushing into pieces of borehole wall for medium and hard formation.
Type | O.D. | I.D | Thread | Hole |
WG155 | 155 | 31.7 | 3 1/2 IF | 6 1/8 |
WG200 | 206 | 38 | 4 IF | 8 1/8 |
WG212 | 212.7 | 44 | 41/2 REG | 8 3/8 |
WG215 | 215.9 | 50.8 | 4 1/2REG | 8 1/2 |
WG244 | 244 | 57 | NC50 | 9 5/8 |
WG311 | 311. | 71 | 6 5/8REG | 12 1/4 |